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Finding the Fourth Proportional to 502,341.64, 693,247.38 and 275,991.88

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Solution

The fourth proportional to 502,341.64, 693,247.38 and 275,991.88 is: 380,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,341.64 : 693,247.38 = 275,991.88 : x
  2. Step 2: Convert to fraction form
    502,341.64/693,247.38 = 275,991.88/x
  3. Step 3: Cross multiply
    502,341.64x = 693,247.38 × 275,991.88
  4. Step 4: Simplify right side
    502,341.64x = 191,330,647,711.27
  5. Step 5: Solve for x
    x = 191,330,647,711.27/502,341.64
  6. Step 6: Final answer
    x = 380,877.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.